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Add missing "return" statement to accumulate_append_subpath.

author Robert Haas <rhaas@postgresql.org>

2018年1月10日 16:18:40 +0000 (11:18 -0500)

committer Robert Haas <rhaas@postgresql.org>

2018年1月10日 16:21:20 +0000 (11:21 -0500)

Without this, Parallel Append can end up with extra children.

Report by Rajkumar Raghuwanshi. Fix by Amit Khandekar. Brown
paper bag bug by me.

Discussion: http://postgr.es/m/CAKcux6mBF-NiddyEe9LwymoUC5+wh8bQJ=uk2gGkOE+L8cv=LA@mail.gmail.com

src/backend/optimizer/path/allpaths.c patch | blob | blame | history

diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c

index 12a6ee4a22b087804fc81877cdadb5e913e25279..c5304b712e6e97f05b59370f94ce3b4b19e367b4 100644 (file)

--- a/src/backend/optimizer/path/allpaths.c

+++ b/src/backend/optimizer/path/allpaths.c

@@ -1926,6 +1926,7 @@ accumulate_append_subpath(Path *path, List **subpaths, List **special_subpaths)

apath->first_partial_path);

*special_subpaths = list_concat(*special_subpaths,

new_special_subpaths);

+ return;

}

else if (IsA(path, MergeAppendPath))

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